In this paper, the authors explain the “hypothetical monopolist test” that has become the standard methodology for identifying relevant antitrust markets in merger cases, and discuss two approaches to implementing the test. They focus on the implementation of the test when firms offer multiple products or services, either inside or outside the candidate market, and discuss the “hypothetical cartel test” introduced in the 2010 US Merger Guidelines. This paper is forthcoming, as edited, in Antitrust Economics for Lawyers (LexisNexis), Chapter 1.
New research on the use of conjoint surveys with market simulation analysis for damages estimation in consumer protection class action litigation
Market simulations that we have seen used in consumer protection class action litigation apply what is known as the static Nash Bertrand model of competition...


